Despite the enormous growth in Islamic banking over the last thirty years, most studies, using DEA/stochastic frontier analysis, have found Islamic banks are either as productive or less productive than conventional banks. We take advantage of recent improvements in the direct estimation of...

Both the theory and practice of using hedonic regressions to remove quality effects in price indexes are implicitly developed for monopolistic competitive markets. In this paper, we theoretically and practically analyze the application of a standard hedonic regression for an oligopoly. In the...

Casual empiricism suggests higher quality is associated with greater variety. However, recent theoretical and empirical research has either not considered this link, or has been unable to establish unambiguous predictions about the relationship between quality and variety. In this paper we...

The static differentiated product demand model when applied to products with rapid product turnover and declining prices, yields implausible results. One response is to explicitly model the inter-temporal choices of consumers but computational demands require restrictive assumptions on consumer...